Hi,
Welcome to HCM
In this season
viral fever is very common and ulcers in mouth may result from viral fever itself and as a result of
Nutritional deficiency and Antibiotics also may cause them.
Such ulcers are painful and make eating and drinking difficult.
As recovery takes place they will also improve some relief may be by
Local anaesthetic agent like mucopain and keep mouth clean by mouth wash like antiseptic
chlorhexidine mouth wash.
B.Complex supplimentation may also help a bit.
Good Luck to you